If we view our American infatuation with Donald Trump through the lens of behavioral genetics, suddenly the pattern becomes clear.
For those committed to meat consumption, eating what they kill may offer various advantages over eating what they find sealed in cellophane. But it is a niche admonition at best, impertinent to the masses of us.
There are many theories out there as to why sperm needs to be kept cooler and why the testes of most mammals hang outside their bodies, inside the scrotal sac. In my opinion, the least likely is the "handicap principle." The easiest way to illustrate this principle is the peacock's flashy feathers.
I'm certainly grateful that I have biological impulses to act altruistically, but I'm also aware that I can't rely on them. They won't free me of the fundamental conflict between altruism and selfishness that is wired into my DNA, and they won't enable me to reach beyond my current limitations.
Being a really good dancer just reeks so much of giving a crap about a pursuit that seems kind of silly. It's like Jerry Seinfeld replied on Seinfeld when a girl asked if he went out dancing often: "No, because it's so stupid."
The researchers also believe that men's sexual preference is shaped with offspring in mind; specifically, they are interested
The whole concept of "transitional fossil," unfortunately, has a sort of linear connotation. Like, there is a sequence of species, one having evolved into the next and so on, but there's a hole in the sequence that needs to be filled. But that's not really how evolution works.
Many of you have doubtless already seen the commentary in the New York Times by my friend and colleague, Dr. David Ludwig, entitled: "Always Hungry? Here's Why." If you have not read the piece, I commend it to you.
“The paper presents a very convincing case of extinction due to humans,” says Carles Lalueza-Fox, an evolutionary biologist
Clearly the giraffe evolved this uncommon and helpful trait in order to reach those nourishing leaves. That's how natural selection works. If you're a 6-year-old.